Find the discriminant and the number of real roots for this equation. x^2 + 3x + 8 = 0

A. 32; two real roots
B. -23; one real root
C. 32; one real root
D. -23; no real roots

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?